Does it take time from breast implants to drop if placed above muscle & under fascia?

Regardless of whether your implants are subfascial or dual plane, there is always settling of the implant and the pocket. Following subfascial breast augmentation, there will be less (craziness) in the upper pole compared to dual plane typically. Post operatively, subfascial breast augmentations tend to look more true to the final result than dual planes do, but even they will be settle and the upper poles will be less full due to postop stretch and settling of the soft tissues. This is a natural response following surgery and so it is important understand that no matter where the implants are placed intraoperatively, the implants will ALWAYS settle and drop to a degree. Gravity wins in the end no matter what.

Thanks for your question!
It can take 6 months for the implants to drop and settle into position. Continue to follow your post op instructions and contact your surgeon with any concerns. Best wishes

Subfascial breast implants do settle a little bit with time, but they not have the same exaggerated "drop and fluff" process that implants under the muscle do, which is one of the benefits of this technique. Some think they appear bigger over the muscle than over, but how much that difference in appearance is depends on how large the implants are relative to your muscle, breast tissue, frame, etc.